JPH0214915U

JPH0214915U -

Info

Publication number: JPH0214915U
Application number: JP9298688U
Authority: JP
Priority date: 1988-07-15
Filing date: 1988-07-15
Publication date: 1990-01-30

Description

[Brief explanation of drawings]

第１図〜第５図は本考案の一実施例を示し、第
１図はセンサプレートを有する施肥ホースの縦断
側面図、第２図は第１図の作用説明図、第３図は
電気回路のブロツク図、第４図は発生電圧とパイ
ロツトランプの点滅関係を示す相対関係図、第５
図は植付装置を省略して示す施肥装置付き田植機
の斜視図である。第６図〜第８図は他例を示し、
第６図はセンサプレートおよび加振器を有する施
肥ホースの縦断側面図、第７図は第６図の作用説
明図、第８図は発生電圧の相対関係図である。第
９図〜第１１図は他例を示し、第９図はセンサプ
レートおよび加振器を有する施肥ホースの縦断側
面図、第１０図は第９図の作用説明図、第１１図
は発生電圧の相対関係図である。第１２図〜第１
６図は他例を示し、第１２図は測定用サーミスタ
の取付状態を示す概略側面図、第１３図は肥料タ
ンクの縦断側面図、第１４図はサーミスタの特性
線図、第１５図は電気回路のブロツク図、第１６
図は電圧と流速の相対関係図である。７……肥料タンク、１１……肥料ポンプ、１２
……施肥ノズル、１３……施肥ホース（流体管路
）、１５……センサプレート、１６……増幅回路
、２０……流量センサ装置、２２……検知回路、
２３……パイロツトランプ。 Figures 1 to 5 show an embodiment of the present invention, Figure 1 is a longitudinal cross-sectional side view of a fertilization hose with a sensor plate, Figure 2 is an explanatory diagram of the operation of Figure 1, and Figure 3 is an electric circuit. Figure 4 is a relative relationship diagram showing the relationship between the generated voltage and the pilot lamp blinking, and Figure 5 is a block diagram of the
The figure is a perspective view of a rice transplanter with a fertilization device, with the planting device omitted. Figures 6 to 8 show other examples,
FIG. 6 is a longitudinal sectional side view of a fertilization hose having a sensor plate and a vibrator, FIG. 7 is an explanatory diagram of the operation of FIG. 6, and FIG. 8 is a diagram of the relative relationship between generated voltages. Figures 9 to 11 show other examples, Figure 9 is a longitudinal cross-sectional side view of a fertilization hose with a sensor plate and a vibrator, Figure 10 is an explanatory diagram of the action of Figure 9, and Figure 11 is a generated voltage. FIG. Figure 12 ~ 1st
Figure 6 shows another example, Figure 12 is a schematic side view showing the mounting state of the measurement thermistor, Figure 13 is a vertical side view of the fertilizer tank, Figure 14 is the thermistor characteristic diagram, and Figure 15 is the electrical Circuit block diagram, No. 16
The figure is a diagram showing the relative relationship between voltage and flow velocity. 7... Fertilizer tank, 11... Fertilizer pump, 12
... Fertilizer nozzle, 13 ... Fertilizer hose (fluid pipe), 15 ... Sensor plate, 16 ... Amplification circuit, 20 ... Flow rate sensor device, 22 ... Detection circuit,
23...Pilot lamp.

Claims

[Scope of utility model registration request]

A sensor plate of a piezo element, which is a flexible or bent body, is protrudingly installed in a fluid conduit through which fluid passes in a pulsating state. , a flow rate sensor which connects the sensor plate to an alarm mechanism via an electric control circuit, electrically detects the rocking displacement and stationary state of the sensor plate, and detects the flow state of the fluid in the fluid pipeline. .